89499879392 has 384 divisors, whose sum is σ = 247037091840. Its totient is φ = 30847703040.

The previous prime is 89499879389. The next prime is 89499879451. The reversal of 89499879392 is 29397899498.

It is a super-2 number, since 2×89499879392² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (77).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46300058 + ... + 46301990.

It is an arithmetic number, because the mean of its divisors is an integer number (643325760).

Almost surely, 2^89499879392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89499879392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123518545920).

89499879392 is an abundant number, since it is smaller than the sum of its proper divisors (157537212448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89499879392 is a wasteful number, since it uses less digits than its factorization.

89499879392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2038 counting only the distinct ones).

The product of its digits is 634894848, while the sum is 77.

The spelling of 89499879392 in words is "eighty-nine billion, four hundred ninety-nine million, eight hundred seventy-nine thousand, three hundred ninety-two".